Application of Spread-spectrum Communication Technology to Theodolite External Communication

2011 ◽  
Vol 28 (12) ◽  
pp. 57-61
Author(s):  
刘开宇 LIU Kai-yu ◽  
朱玮 ZHU Wei
Keyword(s):  
Communication Technology ◽  
Spread Spectrum ◽  
Spread Spectrum Communication ◽  
External Communication

Image Copyright Protection Watermark Algorithm Based on Spread Spectrum Technology

2014 ◽  
Vol 602-605 ◽  
pp. 3272-3277
Author(s):  
Chang Bao Wei
Keyword(s):  
Ultimate Strength ◽  
Digital Watermarking ◽  
Communication Technology ◽  
Copyright Protection ◽  
Spread Spectrum ◽  
Spread Spectrum Communication ◽  
Chinese Library Classification ◽  
Load Intensity ◽  
Watermark Algorithm

With the application of digital watermarking based on spread spectrum communication technology and the difficult control characteristics of watermark load intensity and invisibility, this paper considers the best compromise between watermark robustness and invisibility factors, and puts forward a digital watermarking algorithm using spread spectrum communication technology. By ultimate strength loading watermark test, the algorithm is verified to have good robustness. Chinese library classification number: TP391 literature identifier: A

SIMULATION OF DIRECT SPREAD SPECTRUM COMMUNICATION SYSTEM ON THE HARDWARE MODULE EMONA DATEX. EVALUATION OF THE EFFECT OF NOISE ON THE QUALITY OF DEMODULATION

2019 ◽  
Author(s):  
Maksim Zhmakin ◽  
Irina Chadyuk ◽  
Aleksey Nadymov
Keyword(s):  
Spread Spectrum ◽  
Communication System ◽  
Spread Spectrum Communication ◽  
Direct Spread ◽  
Simulation Results

A variant of implementation of a communication system with direct spread spectrum is presented in this article, simulation results are also presented, the main parameters of the system are taken, and conclusions are drawn.

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